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Cellulose Acetate Butyrate Granules

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Properties common to all products in this list

Composition: CAB Form: Granule Material: Cellulose acetate butyrate (CAB) CAS Number: 9004-36-8 Commodity: Polymers Nominal Granule Size: 3mm Additives: 10% Plasticiser content by weight Color: Natural
Cellulose Acetate Butyrate Granules are thermoplastic polymer granules distinguished by their excellent clarity, UV resistance, and chemical durability, attributed to a balanced acetate–butyrate substitution in the cellulose backbone. This chemical structure provides high stability, reduced moisture absorption, and improved processability compared to pure cellulose acetate, enabling consistent performance in molding and extrusion processes. Industries including optics, coatings, and specialty plastics employ these granules for manufacturing transparent lenses, durable coatings, and high-gloss films. Specific applications benefiting from CAB granules include precision optical components, protective coatings for printed electronics, and high-performance membranes for filtration systems. In research, they are pivotal for developing bio-derived engineering plastics, studying structure–property relationships in cellulose esters, and producing carbon-rich precursors for energy storage electrodes. The combination of renewable origin, performance versatility, and stability against environmental factors reinforces their value in advanced material innovation and sustainable manufacturing.
Starting at $199.00 each
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Material Properties

Physical Properties
Element Value
Abbe number 80-84
Flammability HB
Radiation resistance Fair
Refractive index 1.478
Resistance to Ultra-violet Good
Limiting oxygen index( % ) 17
Water absorption - over 24 hours( % ) 0.9-2.2
Density( gcm⁻³ ) 1.2
Chemical Resistance
Element Value
Acids - dilute Fair-Poor
Alcohols Poor
Alkalis Fair-Poor
Aromatic hydrocarbons Poor
Greases and Oils Good-Poor
Halogenated Hydrocarbons Poor
Halogens Poor
Ketones Poor
Electrical Properties
Element Value
Dielectric constant @1MHz 2.5-6.2
Dissipation factor @ 1kHz 0.04
Dielectric strength( kV mm⁻¹ ) 10
Volume resistivity( Ohmcm ) 10¹¹-10¹⁵
Mechanical Properties
Element Value
Hardness - Rockwell 99
Elongation at break( % ) 60
Tensile modulus( GPa ) 0.3-2
Izod impact strength( J m⁻¹ ) 260
Tensile strength( MPa ) 20-60
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 73
Heat-deflection temperature - 1.8MPa( C ) 62
Lower working temperature( C ) <-40
Upper working temperature( C ) 60-100
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.16-0.32@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 140
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Available Configurations

Properties common to all products in this list

Composition: CAB Form: Granule Material: Cellulose acetate butyrate (CAB) CAS Number: 9004-36-8 Commodity: Polymers Nominal Granule Size: 3mm Additives: 10% Plasticiser content by weight Color: Natural

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